@Xumet, i've also contacted hese, which said that he got the same info from the guy - that the package returned to him.
quite interesting, since you've forwarded me PM that was the last you've received from atarens, which said: "For the first time such a thing happened to me. It's not my fault, but I'm sorry."
As all three of us are located in a different countries, I somehow find these delivery problems (spread over a period of month and a half) quite hard to believe.
I was thinking of waiting few more days, but after seeing this, combined with no reply to my PM from seller, I'm quite sure that this is a scam, I'm opening the paypal dispute right now.